high directivity
Design of Missile-Mounted SIW Antenna with High Directivity for Data Transmission
... with high directivity for mounting on a missile is ...and high directional radiation, and is suitable for data transmission in a missile-aircraft system at frequency of ...
10
A High-Directivity Microstrip Patch Antenna Design by Using Genetic Algorithm Optimization
... In order to see the benefits of the proposal, a microstrip patch array having the same area as the patch to be optimized with the GA, is designed to obtain a high-directivity patch. An array of two ...
14
Research on a New Kind of High Directivity End-Fire Antenna Array
... new high directivity plate end- fire antenna based on the surface wave ...the high directivity plate end-fire element introduced in Section ...a high directivity, which is also ...
17
Compact Metamaterial Antenna with High Directivity for Bio Medical Systems
... of negative permittivity as well as negative permeability values present in the antenna. Since the ground plane comprises of hexagonal metamaterials, it may be considered as defective ground structure antenna. Multiband ...
11
Highly Directive Hybrid Plasmonic Leaky Wave Optical Nano-Antenna
... higher directivity, here, a novel hybrid plasmonic leaky-wave antenna is proposed for operation at the standard telecommunication wavelength of 1550 ...from high directivity advantage of leaky-wave ...
6
Enhanced Low Profile, Dual-Band Antenna via Novel Electromagnetic Band Gap Structure
... and high directivity, EBG structures were found to be very useful when being combined with antennas, and soon practical applications were proposed, such as their use as a ground plane on a curl antenna to ...
11
Design of Microstrip Array Antenna for Wireless Communication Application
... the directivity is high 12 dB as compared to the conventional ...shows high directivity with reduced ...the directivity, it may be possible that this antenna can work for CDMA devices ...
7
Survey on Gain and Bandwidth Enhanced Metamaterial based Microstrip Patch Antenna K. Mahendran 1, Dr. R. Gayathri2
... The difference between this [7] and the technique of Enoch et al., The first one lies in the problem of impedance mismatch between the ε-near-zero (ENZ) matrix and surrounding air. The metamaterial used was anisotropic ...
7
Moon-bounce: A Boon for VHF Dxing
... operated amateur HAM radio was difficult. Even with the modest setup having good transceiver, power amplifier and high gain antenna with high directivity, VHF DXing is possible. Generally 2X11 YAGI ...
5
Enhancing the Directivity of Phased Array Antennas Using Lens-Arrays
... implementing high-directivity steerable ...increasing directivity, without putting penalties on the chip size and DC power ...overall directivity and reduces the scan ...
24
Proof for the Directivity of Circulation Intensity of Vector Field
... In this paper, the expression of circulation intensity in any given normal directions is deduced from the definition in detail through the construction of a square integral path, and the concept of directivity ...
5
Directivity Investigation of two Annular Phased Array Transducers
... Annular phased array transducers are well known in the medical field, with their main use being in ophthalmology and dermatology, and have started to be employed in the NDT industry relatively recently. Annular arrays ...
12
State of Art Review: Behaviour of Masonry Structures under Gravity and Seismic Loads
... Near-Field earthquakes have different pulses in acceleration, velocity and displacement histories [31]. In two recorded and one synthetic, near-field earthquake was compared with the behaviour of 1940 El Centro ...
13
Directivity Control of a Microphone Array in the Vehicle Cabin
... This study investigated the performance of the directivity for the microphone array using the optimization method. The theoretical derivation of the directivity for microphone array has been presented. Also ...
5
Efficient Directivity Enhancement Process Applied in Planar Type of Antenna
... the directivity of the antenna has increased after covering the substrate with metallic strip from all three sides along with the ground ...the directivity of different dielectric materials are different ...
5
Monitoring the Delay and Directivity of Antennas in Gigabit WPAN (802.15.3c)
... and high rate data applications in a small cell ...replace high-speed cable to connect wireless peripherals at home and in the future ...including high data rate, low power transmission in a short ...
8
Dielectric Lens Design Concepts to Enhance Antenna Directivity and Gain
... The block portion of the dielectric material is 100×100×10 mm 3 , and it is placed 10 mm in front of the patch antenna. The focal point of the parabola is 18 mm. With the use of lens, the directivity has been ...
5
OPTIMIZATION OF DIRECTIVITY FOR RECTANGULAR ANTENNA ARRAYS USING SOFT COMPUTING
... It is evident from figure 4 that the directivity actually goes on increasing as we increase the no. of elements in an array. A noticeable thing about the above plot is that it is not a straight line as is normally ...
6
Directivity Optimization in Planar Sub-Arrayed Monopulse Antenna
... In this paper, a two-stage procedure for the optimization of the directivity of compromise difference patterns in monopulse planar sub-arrayed antennas has been considered. The CPM has been used to define the “best ...
7
Directional acoustic radiation in the strut display of male sage grouse Centrocercus urophasianus
... Our system was well suited for acoustic localization using this algorithm. The method assumes that the speed of sound is known, that there is little wind and that receiver positions are accurately known (Spiesberger and ...
17